J05E Forged Crankshaft 13411-2241 Forge Crankshaft R300-5 Sk200-8 for Construction Machinery Loader Accessories Connecting Rod Compatible with 312 M313D M315D 318 Excavator Crank Shaft Construction Machinery Parts. This high-quality crankshaft is designed for optimal performance in heavy-duty construction equipment. Crankshaft Overhaul Kit Components Main and Connecting Rod Bearings: Provide low-friction, wear-resistant surfaces between crankshaft journals and engine